Hydrosphere

Spell, AoE, Duration, Cold, Orb, Lightning, Physical

Level: (1–20)

Cost: (12–20) Mana

Cast Time: 0.60 sec

Critical Strike Chance: 5.00%

Effectiveness of Added Damage: 110%

Requires Level (34–70), (79–155) Int

Create a sphere of water, or move an existing sphere and reset its duration. The sphere continually applies a drenched debuff with a short duration to enemies in its area or those it moves through. You can hit the sphere with other skills to inflict Cold and Lightning Ailments (other than Chill). The sphere pulses when created, at regular intervals while afflicted by an Ailment, and after moving, damaging all drenched enemies in a large area.

Deals (37–510) to (56–765) Physical Damage
Base duration is 8 seconds
Base secondary duration is 4 seconds
Pulses every 0.4 seconds while Frozen, Shocked, Brittle or Sapped
Can only be Hit once every 1 second
Drenched Enemies have Cold and Lightning Exposure, applying -10% to Resistances
100% of Physical Damage Converted to Cold Damage while Sphere has no Ailments
100% of Physical Damage Converted to Lightning Damage while sphere is Shocked or Sapped
100% of Physical Damage Converted to Cold Damage while Sphere is Frozen or Brittle

Additional Effects From Quality:

+(0–10)% increased Pulse Frequency

Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Quest /2

Act	Quest	NPC	Character
4	Breaking the Seal	Quest Reward	Witch · Templar
4	Breaking the Seal	Petarus and Vanja	Scion

Genus

Hydrosphere

Level Effect /40

Implicit
Pulses every 0.4 seconds while Frozen, Shocked, Brittle or Sapped Base secondary duration is 4 seconds Drenched Enemies have Cold and Lightning Exposure, applying -10% to Resistances Can only be Hit once every 1 second Base duration is 8 seconds 100% of Physical Damage Converted to Cold Damage while Sphere has no Ailments\n100% of Physical Damage Converted to Lightning Damage while sphere is Shocked or Sapped\n100% of Physical Damage Converted to Cold Damage while Sphere is Frozen or Brittle (If both conversions apply, each will convert 50%)

Level	Requires Level	Int	Cost	Deals 37 to 56 Physical Damage	Experience
1	34	79	12	37, 56	252,595
2	36	83	12	43, 65	314,394
3	38	88	13	51, 76	388,734
4	40	92	13	59, 88	477,437
5	42	96	14	69, 103	583,786
6	44	100	14	80, 120	710,359
7	46	104	15	93, 139	1,355,511
8	48	109	15	107, 161	1,138,877
9	50	113	15	124, 186	1,368,233
10	52	117	16	144, 215	1,638,338
11	54	121	16	166, 249	1,956,648
12	56	125	17	191, 287	3,655,184
13	58	130	17	221, 331	3,017,327
14	60	134	18	254, 381	3,576,232
15	62	138	18	293, 439	9,164,731
16	64	142	18	337, 505	17,861,428
17	66	146	19	387, 580	46,032,386
18	68	151	19	444, 666	87,248,039
19	69	153	20	476, 714	157,972,052
20	70	155	20	510, 765
21	72		20	585, 877
22	74		21	670, 1006
23	76		21	768, 1152
24	78		21	879, 1319
25	80		22	1006, 1510
26	82		22	1151, 1727
27	84		23	1316, 1974
28	86		23	1504, 2256
29	88		24	1718, 2577
30	90		24	1962, 2943
31	91		24	2096, 3144
32	92		25	2239, 3359
33	93		25	2392, 3588
34	94		25	2555, 3832
35	95		25	2729, 4093
36	96		25	2914, 4371
37	97		26	3111, 4667
38	98		26	3322, 4983
39	99		26	3547, 5320
40	100		26	3786, 5679

Attribute /9

Key	Value
Cost	iLvl 1: Normal: 1xOrb of Chance
Acronym	Hit, Resistance, Exposure, Ailment, Shock, Brittle, Sap
DropLevel	34
BaseType	Hydrosphere
Class	Skill Gems
TargetTypes	Ground,
Type	Damage, Spell, Area, Duration, Trappable, Mineable, Triggerable, AreaSpell, Cold, Totemable, Orb, Multicastable, CanRapidFire, Lightning, Physical
ItemType	Metadata/Items/Gems/SkillGemHydrosphere
Reference	poe.ninja, Community Wiki

Crucible Weapon /1

Weight	Desc
1000 (T5)	Trigger Level 20 Hydrosphere while you Channel Winter Orb

Microtransactions /2 ⍟

Myrmidon Hydrosphere Effect

Your Hydrosphere becomes a Myrmidon Effect.

Harmonious Hydrosphere Effect

Your Hydrosphere becomes a Harmonious Effect.

Labyrinth Enchantment helmet /6 ⍟

Level	Name	Mod	Weight
The Merciless Labyrinth	Enchantment Hydrosphere Damage 1	Hydrosphere deals 25% increased Damage	100
The Eternal Labyrinth	Enchantment Hydrosphere Damage 2	Hydrosphere deals 40% increased Damage	100
The Merciless Labyrinth	Enchantment Hydrosphere Pulse Frequency 1	Hydrosphere has 20% increased Pulse Frequency	100
The Eternal Labyrinth	Enchantment Hydrosphere Pulse Frequency 2	Hydrosphere has 30% increased Pulse Frequency	100
The Merciless Labyrinth	Enchantment Hydrosphere Exposure Amount 1	Enemies Drenched by Hydrosphere have Cold and Lightning Exposure, applying -4% to Resistances	100
The Eternal Labyrinth	Enchantment Hydrosphere Exposure Amount 2	Enemies Drenched by Hydrosphere have Cold and Lightning Exposure, applying -6% to Resistances	100

Supported By /86 ⍟

Active Type: Damage, Spell, Area, Duration, Trappable, Mineable, Triggerable, AreaSpell, Cold, Totemable, Orb, Multicastable, CanRapidFire, Lightning, Physical

Icon	Name
	Added Fire Damage Support Supports any skill that hits enemies.
	Added Cold Damage Support Supports any skill that hits enemies.
	Increased Area of Effect Support Supports any skill with an area of effect.
	Added Lightning Damage Support Supports any skill that hits enemies.
	Increased Critical Strikes Support Supports any skill that hits enemies.
	Increased Critical Damage Support Supports any skill that hits enemies.
	Knockback Support Supports any skill that hits enemies.
	Life Leech Support Supports any skill that hits enemies, causing those hits to leech life based on damage dealt.
	Added Chaos Damage Support Supports any skill that hits enemies.
	Stun Support Supports any skill that hits enemies, making it easier to stun enemies with those skills.
	Trap Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a trap that will use the skill for you when an enemy walks near it. Traps cannot use channelling skills.
	Item Rarity Support Supports any skill that can kill enemies.
	Faster Casting Support Supports non-instant spell skills.
	Concentrated Effect Support Supports any skill with an area of effect, regardless of whether that skill deals damage.
	Increased Duration Support Supports any skill with a duration.
	Cold to Fire Support Supports any skill that hits enemies.
	Combustion Support Supports any skill that hits enemies.
	Elemental Proliferation Support Supports any skill that hits enemies, or could otherwise apply elemental ailments.
	Culling Strike Support Supports any skill that hits enemies. If enemies are left below 10% of maximum life after being hit by these skills, they will be killed.
	Iron Will Support Supports spell skills, making the increase to physical melee damage from strength also increase their spell damage.
	Spell Totem Support Supports spell skills that are not triggered. Instead of casting that spell, you will summon a totem that casts the spell for you.
	Blastchain Mine Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
	Chance to Flee Support Supports any skill that hits enemies.
	Blind Support Supports any skill that hits enemies.
	Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
	Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
	Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
	Elemental Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy elemental resistances.
	Spell Echo Support Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, channelling skills, triggered skills, instant skills, blink skills, or skills with a reservation.
	Power Charge On Critical Support Supports any skill that hits enemies.
	Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
	Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
	Less Duration Support Supports any skill that has a duration.
	Cast on Death Support Each supported spell skill will be triggered when you die. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
	Cast when Damage Taken Support Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
	Cast when Stunned Support Each supported spell skill will have a chance to be triggered when you are stunned. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
	Block Chance Reduction Support Supports any skill that hits enemies.
	Physical to Lightning Support Supports any skill that hits enemies.
	Ice Bite Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
	Hypothermia Support Supports any skill that deals damage.
	Innervate Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
	Critical Strike Affliction Support Supports any skill that hits enemies.
	Void Manipulation Support Supports any skill that deals damage.
	Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
	Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
	Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
	Ignite Proliferation Support Supports any skill that hits enemies.
	Chance to Poison Support Supports any skill that hits enemies.
	Deadly Ailments Support Supports any skill that hits enemies.
	Decay Support Supports any skill that hits enemies.
	Efficacy Support Supports any skill that deals damage or has a duration.
	Vile Toxins Support Supports any skill that hits enemies.
	Immolate Support Supports any skill that hits enemies.
	Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
	Brutality Support Supports any skill that deals damage.
	Arcane Surge Support Each supported spell will track how much mana you spend on it, granting a buff when the total mana spent reaches a threshold. Cannot support skills used by totems, traps, mines or skills with a reservation.
	Summon Phantasm Support Supports skills that can hit enemies, or create minions. When those skills or minions kill enemies, or hit rare or unique enemies they will have a chance to summon a Phantasm minion, which uses a piercing projectile spell that deals physical damage.
	Bonechill Support Supports any skill that can chill enemies or create chilling areas.
	Energy Leech Support Supports any skill that hits enemies, causing those hits to leech energy shield based on damage dealt.
	Intensify Support Supports spell skills that you cast yourself. Cannot support triggered skills, Vaal skills, instant skills, channelling skills, skills with a reservation or which create minions, or skills used by totems, traps, or mines.
	Unleash Support Supports spell skills, making their effect reoccur when cast. Cannot support skills with cooldowns, triggered skills, Brand skills, Vaal skills, channelling skills, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
	High-Impact Mine Support Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
	Awakened Added Fire Damage Support Supports any skill that hits enemies.
	Awakened Brutality Support Supports any skill that deals damage.
	Awakened Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
	Awakened Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
	Awakened Added Cold Damage Support Supports any skill that hits enemies.
	Awakened Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
	Awakened Deadly Ailments Support Supports any skill that hits enemies.
	Awakened Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
	Awakened Void Manipulation Support Supports any skill that deals damage.
	Awakened Added Chaos Damage Support Supports any skill that hits enemies.
	Awakened Added Lightning Damage Support Supports any skill that hits enemies.
	Awakened Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
	Awakened Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
	Awakened Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
	Awakened Increased Area of Effect Support Supports any skill with an area of effect.
	Awakened Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
	Awakened Spell Echo Support Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, channelling skills, triggered skills, instant skills, blink skills, or skills with a reservation.
	Awakened Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
	Awakened Unleash Support Supports spell skills, making their effect reoccur when cast. Cannot support skills with cooldowns, triggered skills, Brand skills, Vaal skills, channelling skills, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
	Cruelty Support Supports any skill that hits enemies. Minions cannot gain Cruelty.
	Overcharge Support Supports any skill that hits enemies.
	Spellblade Support Supports spells that hit enemies. Cannot modify the skills of minions.
	Devour Support Supports any skill that hits enemies.
	Sadism Support Supports any skill that hits enemies.

Community Wiki

Edit

Hydrosphere

Hydrosphere is a skill gem that creates a sphere of water, or moves an existing sphere and resets its duration. The sphere continually applies a drenched debuff with a short duration to enemies in its area or those it moves through. You can hit the sphere with other skills to inflict cold and lightning ailments (other than chill). The sphere pulses at regular intervals while afflicted by an ailment, and after moving, damaging all drenched enemies in a large area with that ailment. It is classified as an Intelligence Skill Gem

Skill functions

Skills that hit enemies can also hit the hydrosphere. This can happen even when no enemies are around. The hydrosphere itself cannot be targeted, so skills that require a specific target and are not merely cast at a location will typically not work with Hydrosphere.

Skill interactions

Brands: Brands cannot attach to hydrosphere. Activations of brands attached to other creatures can hit the hydrosphere.
Chain Hook: Grants Rage when hitting the hydrosphere.
Chaining skills: Skills can chain off the hydrosphere on their first hit. They will not chain from the enemies to the hydrosphere.
Curses: Hydrosphere cannot be affected by hexes or marks, even if the player applies them on-hit. However, since Hydrosphere itself does hit with its initial pulse, it can be used to curse on hit when linked with Hextouch Support.
Explosive Arrow: Explosive Arrows can stick into a hydrosphere and will explode as expected.
Frenzy: Grants frenzy charge when hitting the hydrosphere.
Herald of Thunder: Lightning strikes will target hydrosphere but since it is not allowed to shock it would need to be able to inflict another valid ailment.
Strike skills: Strike skills that strike additional nearby targets, such as those supported by Ancestral Call Support, can choose the hydrosphere as a nearby target. When combined with skills that deal area of effect damage, such as Molten Strike or skills supported by Melee Splash Support, these extra strikes can cause an area of effect overlap back onto the primary target that may increase single target DPS.

Reflected Ailments

Maligaro's Restraint: Shocking hydrosphere reflects the same shock on the player.

The Fulcrum: All Cold and Lightning ailments applied to hydrosphere reflect to the player.

Version history

Version	Changes
3.19.0	Hydrosphere can only be hit by the entity that cast it.
3.17.0	Hydrosphere now deals 37 to 56 Physical Damage at gem level 1 (unchanged), up to 510 to 765 at gem level 20 (previously 356 to 533). Now has 110% Effectiveness of Added Damage at all gem levels (previously 80%). Changed Hydrosphere to have a one second cooldown before it can be hit again. This maintains the ailment mechanic on Hydrosphere to still allow for some special skill interactions but is no longer such a significant single target damage multiplier for so many skills.
3.13.1e	Fixed a bug where '''Hydrospheres''' couldn't be Shocked or Frozen when using Elemental Hit as a Ranged skill.
3.13.0	Introduced to the game.

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